Nortel Networks 10BASE-T - Manual (Page 3)

3
Status LEDs
Two banks of status LEDs on the EtherSpeed module correspond to the port numbers on the module
(see
Figure 2 ). Each fiber port has a correspondingly numbered LED.
Figure 2. EtherSpeed 10BASE-T/100BASE-FX Switch Module LEDs
Each numbered LED turns on, turns off, or blinks to indicate link status and/or data activity as
described in
Table 1 .
Table 1. EtherSpeed LED definitions
LED State Meaning
Turns on Port is enabled from network management, and a cable is attached.
Blinks Data is being transmitted or received.
On (steady, not blinking) Port detects link pulses from the other end, but there is no data.
1 2 3 4
5 6 7 8
9
100 Mb/s
fiber port LEDs
10
938EA
E THER S PEED
10/100
893-00994-A Page 3 Tuesday, April 29, 1997 5:55 PM